Small-arm.



P. MAUSER.

SMALL ARM.

APPLIUATION FILED 11511.27. 1911.

Patented. NOV. 14, 1911.

COLUMBIA "Amunt cmJ/Alluunmu. n,

fofjactuated by the sliding cain plate aand the `55 ends of the locking levers b in contact with UNITED STATES PATENT OFFICE.

PAUL MAUSER, OF OBERNDORF-N-THE-NECKAR, GE R-MANY.

SMALL-ARM.

To all whom it 'may concern:

Be it known that I, PAUL Mansnn, privy commercial councilor, a. subject of the King of W urttemberg, residing at Oberndorf-onthe Neckar, in the Kingdom of Wurttenr berg, Germani, have invented certain new and useful Improvements in Small-Arms, of which the following is a full, clear, and eX- act description.

This invention relates to a modification of an invention for which I obtained Let ters Patent No. 943949 and which refers to a recoil loader with fixed barrel and locking levers, which latter are actuated by a sliding cam plate and move inward and outward after the manner of arms.

' The invention has for its object to facilitate the withdrawal of the breech block during single loading without the necessity for retaining the sliding cam plate in its unlocking position. For this purpose there is provided in connection with the sliding cam plate a spring catch which can be put into and out of engagement and which after being moved into its locking position engages with the sliding cam plate during its forward movement and holds it fast until the breech is opened and has again been closed, whereupon after the catch has been moved back the sliding cam plate springs back into its locking position.

The accompanying drawings illustrate by way of example a constructional form of a recoil loader in accordance with this invention wherein-n Figure 1 shows the parts when the catch is thrown out of engagement, that is to say, in position to admit of the automatic operation of the weapon. Fig. 2 is an underside 40 .view of the breech cover with the catch, as in Fig. 1, thrown out of engagement and Fig. 3` shows in longitudinal section the position of the parts with the catch in the locking position.

The general arrangement of the breech system is the same as in the specification of aforesaid patent.

The locking of the breech block 7c is effected by the locking levers b which are pins b1' of which are so acted upon by the slots a1 of the sliding cam plate that, when the latter is in its rearward position, the front portions of the slots retain the fore the end of the breech block, while when the Patented Nov. 14:, 1911.

Application filed January 27, 1911. Serial No. 604,937.

slide is in its forward position the levers are, by the rear pori ion of the slots o, moved outward into tl'. e unlocking position. The sliding cam plate a is arranged to move freely in the breech coi er in such manner as to be independent of separate actuatingdevice or of other part;` of the breech and it is provided with gripp ng projections a* extending laterally outw: rd.

Now in accordance vith the present improvement there is ari inged, in connection with the sliding cam p ate o and preferably also in the breech coi er, a spring locking arm w which can be out into and out of engagement and whicl when in the locking position, engages v ith its front notched end w1 behind an inne] projection 1.5 of the sliding cam plate a ani by this means prevents the rearward m( vement of said cam plate under the pressul e of its spring. The

forward and backwari movement of the spring locking arm is e ected by means of a controlling lever n which is rotatably mounted on the upper :ide of the cover and which in its two eXtr: me positions of engagement and diseng: gement can be retained by spring eng: gement with corresponding notches of a g uide groove u1. The pivot c of this adjusti: lg lever a passes inward through the coi er and is provided with a projection o1 wiich, when the lever is turned into the locl ing position, passes over the spring lockingl arm fw and by this means keeps it pressed lo-wn. When in this position the end 'w1 of t ie arm w must, when the sliding cam plate a is pressed forward, fall into the locking pos ition behind the projection a5 so that the sliding cam plate is held in the unlocking position against the action of its spring s. The breech block can now be drawn bacrward without difliculty and can also agaii be pushed forward without the necessity, as has hitherto been the case, of holding the sliding cam plate by hand in the unlocking position. When the breech block is again noved forward and controlling lever u is tirned into the position of disengagemen 2, the sliding cam plate is released and, by means of its spring, which up to this time ias been under compression, is brought be ck into the locking position.

What I claim as my .nvention and desire to secure by Letters Patent is:

l. In an automatic )reech loading lirearm, the combination with a breech bolt,

locking.;` levers therefor, and a cam plate adapted to move said levers int-o and outof locking' l'iosition, of means adapted to l'icrmai'ienily retain said cam plate in position` to maintain said locking levers in unlocking position.

2. In an automatic breech loading tirearm, the combination with a breech bolt, locking levers therefor, and a cam plate adapted to move said levers into and out of locking position, of means adapted to permanently retain said cam plate in position to i'naintain said locking` levers in unlocking position, and means for moving said retaining` means into and' out of position to retain said cam. plate.

3. In an automatic breech loadinag` tirearm,tlie combination with a breech bolt,lock ing levers therefor, and a sliding cameplate adapted to move said levers into and out of locking position, of a spring catch adapted to be moved into and out. of position to permanently retain said sliding,` cam plate in position to maintain said locking levers in unlocking position, whereby said breech bolt may be moved to open and close the breech.

4. In an automatic breech loading firearm, the combination with a. breech bolt, locking levers therefor, and a sliding camplate adapted to move 4said levers int-o and Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

out of locking position, of a spring catch adapted to be moved into and out of position to permanently retain said sliding cam plate in position to maint-ain said locking levers in. unlocking position, whereby said breech bolt may be moved to open and close the breech, and means for movinpr said spring catch into and out of position to retain said cam plate.

5. In an automatic breech loading fire arm, the combination With a breech bolt, locking levers therefor, and a sliding camplate adapted to move said levers into and out of locking position, of a spring catch adapted to be moved into and out of position to permanently retain said sliding cam plate in position to maintain said locking levers in unlocking position, whereby said breech bolt may be moved to open and close the breech, and a lever having a projection thereon adapted to engage said spring catch for moving said spring catch into position to ret-ain said cam-plate.

In Witness whereof, I have hereunto signed my name in lthe presence of tvvo subscribing Witnesses.

PAUL MAUSER.

Witnesses FRIDA KLAIBER, PAULINE KLAIBER.

Washington, D. C. 

